Ladder rung device



FIG. 1 is a back left isometric view of a ladder rung device showing mynew design;

FIG. 2 is a back view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a front side view.

CLAIM The ornamental design for a ladder rung device, as shown.